FZUS53 KDLH 271000 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 AM CDT Sat Jun 27 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-271600- Grand Portage to Grand Marais MN- 500 AM CDT Sat Jun 27 2026 .TODAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots until early morning. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .SUNDAY NIGHT...East wind 10 to 15 knots. Gusts up to 25 knots. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 2 to 4 feet. A small craft advisory may be needed. $$ LSZ141-271600- Grand Marais to Taconite Harbor MN- 500 AM CDT Sat Jun 27 2026 .TODAY...Northeast wind 5 to 10 knots. Slight chance of rain showers in the late morning and early afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots until early morning. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...East wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .SUNDAY NIGHT...East wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Slight chance of thunderstorms in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 2 to 4 feet. A small craft advisory may be needed. $$ LSZ142-271600- Taconite Harbor to Silver Bay Harbor MN- 500 AM CDT Sat Jun 27 2026 .TODAY...Northeast wind 5 to 10 knots. Slight chance of rain showers in the late morning and early afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of thunderstorms in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 2 to 4 feet. $$ LSZ143-271600- Silver Bay Harbor to Two Harbors MN- 500 AM CDT Sat Jun 27 2026 .TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers in the morning. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and afternoon. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Slight chance of thunderstorms in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 1 to 3 feet. $$ LSZ144-271600- Two Harbors to Duluth MN- 500 AM CDT Sat Jun 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH THIS EVENING... .TODAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of rain showers early in the morning, then chance of rain showers late in the morning. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and afternoon. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of thunderstorms in the evening. Rain showers through the night. Chance of thunderstorms after midnight. Waves 1 to 3 feet. $$ LSZ145-271600- Duluth MN to Port Wing WI- 500 AM CDT Sat Jun 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON THROUGH THIS EVENING... .TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers in the morning. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and afternoon. A small craft advisory may be needed. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening. Chance of rain showers and slight chance of thunderstorms in the evening, then rain showers likely and chance of thunderstorms after midnight. Waves 1 to 3 feet. $$ LSZ146-271600- Port Wing to Sand Island WI- 500 AM CDT Sat Jun 27 2026 .TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers late in the morning. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. .SUNDAY NIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Rain showers likely and slight chance of thunderstorms in the evening, then rain showers and chance of thunderstorms after midnight. Waves 1 to 3 feet. $$ LSZ147-271600- Sand Island to Bayfield WI- 500 AM CDT Sat Jun 27 2026 .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain showers late in the morning. Waves 1 to 2 feet. .TONIGHT...East wind 5 to 10 knots with gusts to around 20 knots becoming southeast early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. .SUNDAY...East wind 5 to 10 knots rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. .SUNDAY NIGHT...East wind 5 to 10 knots. Slight chance of thunderstorms in the evening. Chance of rain showers through the night. Chance of thunderstorms after midnight. Waves 1 to 3 feet. $$ LSZ150-271600- Outer Apostle Islands Beyond 5 NM from Mainland- 500 AM CDT Sat Jun 27 2026 .TODAY...East wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain showers late in the morning. Waves 1 to 3 feet. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. .SUNDAY...East wind 10 to 15 knots becoming east 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .SUNDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots until early morning. Chance of rain showers and slight chance of thunderstorms in the evening, then rain showers and chance of thunderstorms after midnight. Waves 1 to 3 feet. $$ LSZ121-271600- Chequamegon Bay-Bayfield to Oak Point WI- 500 AM CDT Sat Jun 27 2026 .TODAY...East wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain showers late in the morning. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...East wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .SUNDAY NIGHT...Southeast wind 5 to 10 knots. Chance of showers and slight chance of thunderstorms in the evening, then showers likely and chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ LSZ148-271600- Oak Point to Saxon Harbor WI- 500 AM CDT Sat Jun 27 2026 .TODAY...East wind 5 knots becoming northeast 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...East wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .SUNDAY NIGHT...Southeast wind 5 to 10 knots. Gusts up to 20 knots until early morning. Chance of showers and slight chance of thunderstorms in the evening, then showers likely and chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH